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Finding the Fourth Proportional to 73,819, 110,772.78 and 27,076.60

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Solution

The fourth proportional to 73,819, 110,772.78 and 27,076.60 is: 40,631.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,819 : 110,772.78 = 27,076.60 : x
  2. Step 2: Convert to fraction form
    73,819/110,772.78 = 27,076.60/x
  3. Step 3: Cross multiply
    73,819x = 110,772.78 × 27,076.60
  4. Step 4: Simplify right side
    73,819x = 2,999,350,254.95
  5. Step 5: Solve for x
    x = 2,999,350,254.95/73,819
  6. Step 6: Final answer
    x = 40,631.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.